EP0992373A3 - System and method for shortening the braking distance and improving traction in motor vehicles - Google Patents
System and method for shortening the braking distance and improving traction in motor vehicles Download PDFInfo
- Publication number
- EP0992373A3 EP0992373A3 EP99115211A EP99115211A EP0992373A3 EP 0992373 A3 EP0992373 A3 EP 0992373A3 EP 99115211 A EP99115211 A EP 99115211A EP 99115211 A EP99115211 A EP 99115211A EP 0992373 A3 EP0992373 A3 EP 0992373A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- shortening
- friction
- braking distance
- improving traction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/176—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
- B60T8/1764—Regulation during travel on surface with different coefficients of friction, e.g. between left and right sides, mu-split or between front and rear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/016—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
- B60G17/0165—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/60—Load
- B60G2400/61—Load distribution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/80—Exterior conditions
- B60G2400/82—Ground surface
- B60G2400/822—Road friction coefficient determination affecting wheel traction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/01—Attitude or posture control
- B60G2800/012—Rolling condition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/01—Attitude or posture control
- B60G2800/016—Yawing condition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2260/00—Interaction of vehicle brake system with other systems
- B60T2260/02—Active Steering, Steer-by-Wire
- B60T2260/024—Yawing moment compensation during mu-split braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2552/00—Input parameters relating to infrastructure
- B60W2552/40—Coefficient of friction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Regulating Braking Force (AREA)
- Vehicle Body Suspensions (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
Die Erfindung betrifft ein Verfahren und ein System zur Bremswegverkürzung und Traktioneverbesserung eines Kraftfahrzeugs, das ein Wankstabilisierungssystem mit mindestens einem Stellantrieb pro Achse aufweist, der jeweils zwischen den beiden Hälften eines vorderen und hinteren Fahrwerkstabilisators angeordnet ist, das dadurch gekennzeichnet ist, daß bei fahrendem Fahrzeug ein Reibwert (µ) zwischen jedem Rad und der Fahrbahnoberfläche gemessen oder geschätzt wird, die so ermittelten Reibwerte (µ) der Räder der linken und rechten Fahrzeugseite miteinander verglichen werden, und wenn der Vergleich der Reibwerte einen Unterschied (hoch-µ, niedrig-µ) zwischen den Fahrzeugseiten ergibt, die Stellantriebe an den Achsen diagonal gegensinnig so verspannt werden, daß die Aufstandskräfte der Räder entsprechend den gemessenen unterschiedlichen Reibwerten erhöht bzw. erniedrigt werden. The invention relates to a method and a system for shortening the braking distance and improving traction of a motor vehicle, which has a roll stabilization system with at least one actuator per axle, which is arranged between the two halves of a front and rear chassis stabilizer, which is characterized in that when the vehicle is moving Friction value (µ) between each wheel and the road surface is measured or estimated, the friction values (µ) of the wheels of the left and right side of the vehicle determined in this way are compared with one another, and if the comparison of the friction values shows a difference (high-µ, low-µ) between the sides of the vehicle, the actuators on the axles are clamped diagonally in opposite directions so that the contact forces of the wheels are increased or decreased in accordance with the measured different coefficients of friction.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19846500A DE19846500A1 (en) | 1998-10-09 | 1998-10-09 | System and method for shortening the braking distance and improving traction in motor vehicles |
DE19846500 | 1998-10-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0992373A2 EP0992373A2 (en) | 2000-04-12 |
EP0992373A3 true EP0992373A3 (en) | 2000-06-07 |
EP0992373B1 EP0992373B1 (en) | 2009-07-01 |
Family
ID=7883895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99115211A Expired - Lifetime EP0992373B1 (en) | 1998-10-09 | 1999-07-31 | System and method for shortening the braking distance and improving traction in motor vehicles |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0992373B1 (en) |
JP (1) | JP2000127733A (en) |
DE (2) | DE19846500A1 (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10156087B4 (en) * | 2001-11-16 | 2005-06-02 | Müller Weingarten AG | Device for processing a metal strip with different thicknesses |
JP3781114B2 (en) * | 2002-08-07 | 2006-05-31 | トヨタ自動車株式会社 | Vehicle ground load control device |
DE10330895A1 (en) * | 2003-07-09 | 2005-02-17 | Daimlerchrysler Ag | Control of straight-line interference of a motor vehicle |
JP2005059613A (en) * | 2003-08-11 | 2005-03-10 | Toyota Motor Corp | Suspension system for vehicle |
EP1725439B1 (en) * | 2004-03-16 | 2015-12-30 | Continental Teves AG & Co. oHG | Method for increasing the driving stability of a motor vehicle |
DE102004029783A1 (en) * | 2004-06-21 | 2006-01-05 | Zf Friedrichshafen Ag | Device and method for influencing the steering behavior of a motor vehicle |
JP4685407B2 (en) * | 2004-10-25 | 2011-05-18 | トヨタ自動車株式会社 | Vehicle behavior control device |
JP4529661B2 (en) * | 2004-12-02 | 2010-08-25 | 株式会社アドヴィックス | ABS control device |
DE102005009002B4 (en) | 2005-02-28 | 2018-10-31 | Volkswagen Ag | Method for operating active stabilizers on motor vehicles |
FR2896754B1 (en) * | 2006-01-30 | 2008-04-11 | Renault Sas | METHOD FOR REDUCING THE BRAKING DISTANCE OF A MOTOR VEHICLE AND DEVICE FOR IMPLEMENTING SAID METHOD |
DE102006016061A1 (en) * | 2006-04-04 | 2007-10-11 | Continental Teves Ag & Co. Ohg | Traction control with active underbody e.g. for motor vehicles, increases maximum driving force through appropriate distribution of wheel vertical force on roads with different friction applied |
JP4882848B2 (en) * | 2007-04-23 | 2012-02-22 | アイシン精機株式会社 | Integrated vehicle behavior controller |
JP2008285006A (en) | 2007-05-17 | 2008-11-27 | Advics:Kk | Vehicular driving wheel load control device |
DE102008003901A1 (en) | 2008-01-10 | 2009-07-16 | Bayerische Motoren Werke Aktiengesellschaft | Wheel load adjusting device for use in double-track, two-axle motor vehicle, involves increasing vertical-load of wheel of driven axle supplying large drive torque during appropriate distribution of drive torque by traction control system |
FR2933940B1 (en) * | 2008-07-17 | 2011-01-21 | Renault Sas | IMPROVING MOTORITY ON ASYMMETRIC ADHESION OF A VEHICLE EQUIPPED WITH ACTIVE ANTI-ROLL BARS |
FR2969564B1 (en) * | 2010-12-22 | 2012-12-28 | Renault Sa | METHOD AND DEVICE FOR MONITORING A MOTOR VEHICLE IN A BRAKING CONDITION WITH ASYMMETRIC ADHESION |
DE102015223666A1 (en) * | 2015-11-30 | 2017-06-01 | Continental Teves Ag & Co. Ohg | Method and system for influencing the braking behavior of a vehicle |
US20170158016A1 (en) * | 2015-12-04 | 2017-06-08 | Continental Automotive Systems, Inc. | Air suspension indvidual corner control to optimize traction |
DE102016110851B4 (en) | 2016-06-14 | 2023-11-02 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for operating a motor vehicle |
JP6604304B2 (en) * | 2016-10-20 | 2019-11-13 | トヨタ自動車株式会社 | Vehicle stability control device |
JP6583255B2 (en) * | 2016-12-27 | 2019-10-02 | トヨタ自動車株式会社 | Vehicle travel control device |
DE102017107603A1 (en) | 2017-04-10 | 2018-10-11 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for operating a motor vehicle |
US11077733B2 (en) | 2018-11-26 | 2021-08-03 | Continental Automotive Systems, Inc. | Dynamic load transfer by switchable air volume suspension |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6029317A (en) * | 1983-07-27 | 1985-02-14 | Nissan Motor Co Ltd | Cornering limit restraining apparatus for vehicle |
JPS624620A (en) * | 1985-06-28 | 1987-01-10 | Mazda Motor Corp | Suspension device for automobile |
EP0508640A1 (en) * | 1991-04-06 | 1992-10-14 | Lucas Industries Public Limited Company | Wheel spin detection and traction control |
US5229955A (en) * | 1990-03-09 | 1993-07-20 | Toyota Jidosha Kabushiki Kaisha | Apparatus for detecting road surface frictional coefficient |
US5482133A (en) * | 1990-07-09 | 1996-01-09 | Nissan Motor Co., Ltd. | Traction control for automotive vehicle |
US5517414A (en) * | 1994-10-03 | 1996-05-14 | Ford Motor Company | Traction control system with active suspension |
US5563792A (en) * | 1992-11-12 | 1996-10-08 | Ford Motor Company | Vehicular surface traction characteristic estimation techniques |
US5774821A (en) * | 1994-11-25 | 1998-06-30 | Itt Automotive Europe Gmbh | System for driving stability control |
DE19808673A1 (en) * | 1997-09-30 | 1999-04-01 | Daimler Benz Ag | Braking force control system for road vehicle with electrically controlled four-circuit braking system and suspension system |
-
1998
- 1998-10-09 DE DE19846500A patent/DE19846500A1/en not_active Ceased
-
1999
- 1999-07-31 EP EP99115211A patent/EP0992373B1/en not_active Expired - Lifetime
- 1999-07-31 DE DE59915047T patent/DE59915047D1/en not_active Expired - Lifetime
- 1999-10-08 JP JP11287936A patent/JP2000127733A/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6029317A (en) * | 1983-07-27 | 1985-02-14 | Nissan Motor Co Ltd | Cornering limit restraining apparatus for vehicle |
JPS624620A (en) * | 1985-06-28 | 1987-01-10 | Mazda Motor Corp | Suspension device for automobile |
US5229955A (en) * | 1990-03-09 | 1993-07-20 | Toyota Jidosha Kabushiki Kaisha | Apparatus for detecting road surface frictional coefficient |
US5482133A (en) * | 1990-07-09 | 1996-01-09 | Nissan Motor Co., Ltd. | Traction control for automotive vehicle |
EP0508640A1 (en) * | 1991-04-06 | 1992-10-14 | Lucas Industries Public Limited Company | Wheel spin detection and traction control |
US5563792A (en) * | 1992-11-12 | 1996-10-08 | Ford Motor Company | Vehicular surface traction characteristic estimation techniques |
US5517414A (en) * | 1994-10-03 | 1996-05-14 | Ford Motor Company | Traction control system with active suspension |
US5774821A (en) * | 1994-11-25 | 1998-06-30 | Itt Automotive Europe Gmbh | System for driving stability control |
DE19808673A1 (en) * | 1997-09-30 | 1999-04-01 | Daimler Benz Ag | Braking force control system for road vehicle with electrically controlled four-circuit braking system and suspension system |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 009, no. 152 (M - 391) 27 June 1985 (1985-06-27) * |
PATENT ABSTRACTS OF JAPAN vol. 011, no. 172 (M - 595) 3 June 1987 (1987-06-03) * |
Also Published As
Publication number | Publication date |
---|---|
JP2000127733A (en) | 2000-05-09 |
DE19846500A1 (en) | 2000-04-13 |
EP0992373A2 (en) | 2000-04-12 |
DE59915047D1 (en) | 2009-08-13 |
EP0992373B1 (en) | 2009-07-01 |
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